.contribute-qrcode {
  width: 240rpx;
  height: 240rpx;
}
/* 活动规则 */
.rule {
  padding-left: 34rpx;
  color: #101010;
  font-size: 28rpx;
  line-height: 60rpx;
  position: relative;
}
.rule:before {
  content: "";
  width: 14rpx;
  height: 14rpx;
  background-color: #ccc;
  border-radius: 50%;
  position: absolute;
  top: calc((60rpx - 14rpx) * 0.5);
  left: 0
}
.rule:nth-child(n+2) {
  margin-top: 20rpx;
}